George l



@eine tetesatwt @fitta GEORGE `L. CRANDAL,- OF PITCHER, NEW YORK. Letters Patent No. 70,171, dated October 29, 1,867.

IMPROVEMENT IN SHUTTLES.

"1O ALL WHOM IT MAY CNCERN: y

Bo it known that I, GEORGE L. CRANDAL, of Pitcher, in the county of Chenango, and State of New York, have invented new and useful Improvements in a Shuttle; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this speeiticatioiniin which- Figure 1 is a viewr of the inside of a shuttle, showing my improved arrangement of an adjustable spring and wire for regulating the tension ofthe lling. i

Figure 2 is a cross-section, taken in the line :c x, iig. 1, showing the same device.

Figurey 3 is an inside view'of the shuttle, showing the provision made for and mode of using' my improved springr threading-hook for threading the shuttle. v i

Figure v4 is a cross-section in the line y y, g. 3, showing thesame things.

Similar letters of reference indicate like parts.

This invention relates to devices attached to and connected with an ordinary weaving-shuttle for the purposevof regulating the iilling during the operation of weaving, as it runs'froin the spool to the eye ofthe shuttle.

The tension improvement consists in placing an adjustable spring or wire loop on the inside near the eye ofthe shuttle, in connection' with a stationary wire so formed that asthelling runs olf of the spool to the oye, the tension, either loose or tight, as desired, will equalize the-strainupon it, and take out the kinks to prevent their being woven into the cloth and making knots in it; and the threading arrangement consists in a curved channel or guide-way cutin the shell of the shuttle, on the inside, directly opposite'the eye, for guiding an elastic or curved wire, having arhook on its end, which catches the filling and draws the end through the eye ready'for weaving. j

A represents an ordinary shuttle, containing a spool of filling, B. A' strong bent spring, ct, is fastened at one end to-the shell on the inside of the shuttle, and on the opposite side to that in which the eye c is located,

and the free end curves over tothelopposite side, near the eye, where it has room in a recess, s, to move, and is adjusted by a sot-screw, d, iig. 2. A curved wire, e, is fastened rigidly near to the `spring a to form a narrow gate for the filling to pass through between them, and thus, by the position of the spring, receive more or less tension as it runs from thc spool through the eye of the shuttle to the web in weaving, as shown clearly in fig. 1.

The position of this tension device requires a change in thc mode of threading the shuttle, which I provide for by cutting a curved inclined groovem, in the side ofthe shell, directly opposite the eye, for the purpose of guiding and turning up the end of an elastic or curved `hookd), that catches the lling and. draws the end through the eye, as shown in g. The hook p is to be screwed at one end to the breast-beam of the loom,

in any convenient place on it, and by taking up the end of the shuttle with the left hand, and the end of the filling in the right hand, the stationary hook may be run through the eye to come out at the top of the shuttle and catch the end of the filling. 4This device is very convenient, and saves the weaver time and trouble.

What I claim as new, and desire to secure by Letters Patent, is-V- 1. The curved tension spring a, in combination with the curved fixed wire e, when arranged and operating in a. shuttle substantially as and for the purpose herein speeied. Y

2. The inclined groove m, in the shell of the shuttle, opposite the eye c, for guiding the threadngwire p, as set forth. l

i GEO. L. ORANDAL.

Witnesses:

E. W. ALLEN,

E. W. 'Tnnmlln 

